From cc815dac4ea17ccb09a0481ad82745a194efe95f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Pecka?= <tomas.pecka@cesnet.cz>
Date: Mon, 27 Jan 2025 19:17:07 +0100
Subject: [PATCH 28/44] server: prepare checking if yang features are enabled
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Organization: Wires

We are not requiring any now, but next commits will need it. I am
splitting this into a separate commit for clarity.

Change-Id: I0a8874b55b21d5ed6c7222f0c36a36c3c5ff52c5
Signed-off-by: Mattias Walström <lazzer@gmail.com>
---
 src/restconf/Server.cpp | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/restconf/Server.cpp b/src/restconf/Server.cpp
index d356f7e..55e504a 100644
--- a/src/restconf/Server.cpp
+++ b/src/restconf/Server.cpp
@@ -817,14 +817,20 @@ Server::Server(sysrepo::Connection conn, const std::string& address, const std::
     , server{std::make_unique<nghttp2::asio_http2::server::http2>()}
     , dwdmEvents{std::make_unique<sr::OpticalEvents>(conn.sessionStart())}
 {
-    for (const auto& [module, version] : {
-             std::pair<std::string, std::string>{"ietf-restconf", "2017-01-26"},
-             {"ietf-restconf-monitoring", "2017-01-26"},
-             {"ietf-netconf", ""},
-             {"ietf-yang-library", "2019-01-04"},
-             {"ietf-yang-patch", "2017-02-22"},
-             }) {
-        if (!conn.sessionStart().getContext().getModuleImplemented(module)) {
+    for (const auto& [module, version, features] : {
+             std::tuple<std::string, std::string, std::vector<std::string>>{"ietf-restconf", "2017-01-26", {}},
+             {"ietf-restconf-monitoring", "2017-01-26", {}},
+             {"ietf-netconf", "", {}},
+             {"ietf-yang-library", "2019-01-04", {}},
+             {"ietf-yang-patch", "2017-02-22", {}},
+         }) {
+        if (auto mod = conn.sessionStart().getContext().getModuleImplemented(module)) {
+            for (const auto& feature : features) {
+                if (!mod->featureEnabled(feature)) {
+                    throw std::runtime_error("Module "s + module + "@" + version + " does not implement feature " + feature);
+                }
+            }
+        } else {
             throw std::runtime_error("Module "s + module + "@" + version + " is not implemented in sysrepo");
         }
     }
-- 
2.43.0